New efficient sulfurizing reagents for the preparation of oligodeoxyribonucleotide phosphorothioate analogues. (1/1)
A set of new sulfurizing agents representing disulfides of arylsulfonic acids has been developed for the automated synthesis of phosphorothioate oligonucleotide analogues via the phosphoramidite method. These reagents, such as bis(benzenesulfonyl)disulfide, bis(p-toluenesulfonyl)disulfide, bis(p-methoxybenzensulfonyl)disulfide, and bis (p-chlorobenzenesulfonyl) disulfide, are easily prepared crystalline solid compounds. They are relatively inexpensive, easy to handle, and efficiently convert internucleotide cyanoethyl phosphite to the phosphorothioate triester within 1-2 min. The efficiency of phosphorothioate oligonucleotide synthesis with the use of these reagents is comparable to that of phosphodiester oligonucleotides. (+info)
Aromatic sulfonation
Aryl sulfonic acids are used as detergents, dye, and drugs. Typical conditions involve heating the aromatic compound with ... As a functional group, aryl sulfonic acids undergo desulfonation when heated in water: RC6H4SO3H + H2O → RC6H5 + H2SO4 When ... Aromatic sulfonic acids are intermediates in the preparation of dyes and many pharmaceuticals. Sulfonation of anilines lead to ... Aromatic sulfonation is an organic reaction in which a hydrogen atom on an arene is replaced by a sulfonic acid functional ...
N,N,N′,N′-Tetramethylformamidinium chloride
3. (Comm.) The reaction of arylsulfonyl chlorides and arylsulfonic acids with dimethylformamide]. Monatshefte für Chemie (in ... Synthesis of O,N- and N,N-acetals of α-keto-carboxylic acid nitriles as well as imino esters]. Chemische Berichte (in German). ... N,N,N′,N′-tetramethylformamidinium is a catalyst in the preparation of acyl chlorides from carboxylic acids and phosgene has ... EP 1124783, Henkelmann, J. & Stamm, A., "Method for producing carboxylic acid chlorides", issued 2001-08-22, assigned to BASF ...
Sulfonic acid
... a tautomer of sulfurous acid, S(=O)(OH)2. Salts or esters of sulfonic acids are called sulfonates. Aryl sulfonic acids are ... Thus, heating aryl sulfonic acids in aqueous acid produces the parent arene. This reaction is employed in several scenarios. In ... Arylsulfonic acids are susceptible to hydrolysis, the reverse of the sulfonation reaction. Whereas benzenesulfonic acid ... p-Cresidinesulfonic acid is used to make food dyes. Being strong acids, sulfonic acids are also used as catalysts. The simplest ...
Dinonylnaphthylsulfonic acid
... (DINNSA) is an organic chemical, an aryl sulfonic acid. Its melting point is 259.5 °C and its ... Dinonylnaphthylsulfonic acid is a component of Stadis 450 which is an antistatic agent added to distillate fuels, solvents, ... It has low volatility and vapor pressure and is stable above 100 °C. Dinonylnaphthylsulfonic acid is used as an additive in ... Dinonylnaphthylsulfonic acid is prepared by reaction of naphthalene with nonene, yielding diisononylnaphthalene. ...
P-Toluenesulfonic acid
As with other aryl sulfonic acids, TsOH is a strong organic acid. It is about one million times stronger than benzoic acid. It ... Benzenesulfonic acids, Reagents for organic chemistry, Acid catalysts, Sulfonic acids, P-Tosyl compounds). ... p-Toluenesulfonic acid (PTSA or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH3C6H4SO3H. It is a ... ISBN 978-0-12-805457-4. Guthrie, J. P. Hydrolysis of esters of oxy acids: pKa values for strong acids. Can. J. Chem. 1978, 56, ...
Tetrakis(pyridine)silver(II) peroxydisulfate
Aromatic thiols and allylaryl thioethers are oxidized to arylsulfonic acids, which gives an alternative route to produce ... and capable of decarboxylating α-hydroxycarboxylic acids and phenylacetic acids to give the corresponding carbonyl compounds. ... arylsulfonic acids with mild conditions. As the compound contains the peroxydisulfate ion as the counter anion, this compound ... The compound decomposes at 137 °C. It dissolves in concentrated nitric acid without reduction, and is converted to the black ...
List of MeSH codes (D02)
... taurolithocholic acid MeSH D02.886.645.600.080 - arylsulfonic acids MeSH D02.886.645.600.080.050 - arylsulfonates MeSH D02.886. ... quinic acid MeSH D02.241.511.852 - shikimic acid MeSH D02.241.511.902 - sugar acids MeSH D02.241.511.902.107 - ascorbic acid ... edetic acid MeSH D02.241.081.038.455 - egtazic acid MeSH D02.241.081.038.581 - iodoacetic acid MeSH D02.241.081.038.581.400 - ... hexuronic acids MeSH D02.241.081.844.915.400.500 - iduronic acid MeSH D02.241.081.901.177 - aconitic acid MeSH D02.241.081.901. ...
MeSH Browser
Sulfonic Acids [D02.886.645.600] * Alkanesulfonic Acids [D02.886.645.600.055] * Arylsulfonic Acids [D02.886.645.600.080] * ... Organic sulfonic acid derivatives which contain an aromatic hydrocarbon radical.. Terms. Arylsulfonic Acids Preferred Term Term ... Arylsulfonic Acids Preferred Concept UI. M0026806. Registry Number. 0. Scope Note. ... Arylsulfonic Acids. Tree Number(s). D02.886.645.600.080. Unique ID. D017739. RDF Unique Identifier. http://id.nlm.nih.gov/mesh/ ...
MeSH Browser
Sulfonic Acids [D02.886.645.600] * Alkanesulfonic Acids [D02.886.645.600.055] * Arylsulfonic Acids [D02.886.645.600.080] * ... Organic sulfonic acid derivatives which contain an aromatic hydrocarbon radical.. Terms. Arylsulfonic Acids Preferred Term Term ... Arylsulfonic Acids Preferred Concept UI. M0026806. Registry Number. 0. Scope Note. ... Arylsulfonic Acids. Tree Number(s). D02.886.645.600.080. Unique ID. D017739. RDF Unique Identifier. http://id.nlm.nih.gov/mesh/ ...
The Hetero Ring Contains Plural Oxygens Patents and Patent Applications (Class 540/61) - Justia Patents Search
... an anhydrous strong acid selected from orthophosphoric acid, alkylsulfonic acids, fluoroalkylsulfonic acids or arylsulfonic ... an anhydrous strong acid selected from orthophosphoric acid, alkylsulfonic acids, fluoroalkylsulfonic acids or arylsulfonic ... 16,17-acetalsubstituted androstane-17.beta.-carboxylic acid esters prossessing high binding affinity to the glucocorticosteroid ... in acetonitrile in presence of p-toluenesulphonic acid as a catalyst. ...
DeCS
NDF-RT Code NDF-RT Name
N0000167677 Arylformamidase N0000167604 Arylsulfatases N0000008131 Arylsulfonates N0000008283 Arylsulfonic Acids N0000168306 ... Neutral N0000006806 Amino Acids N0000011372 Amino Acids, Acidic N0000011248 Amino Acids, Aromatic N0000011332 Amino Acids, ... Acyclic N0000008269 Acids, Aldehydic N0000007628 Acids, Carbocyclic N0000007629 Acids, Heterocyclic N0000007630 Acids, ... Amino Acid Isomerases N0000167825 Amino Acid Oxidoreductases N0000169801 Amino Acid Transport System A N0000169803 Amino Acid ...
Búsqueda | BVS Bolivia
This work provides a facile pathway to aryl sulfonic acid-functionalized SWNTs that are not roped or bundled, and the ... Carbon nanotube fibers were swollen in oleum (fuming sulfuric acid), and organic spacer groups were covalently linked between ... 4-benzoic acid-functionalized SWNTs. Decreased cell growth after culture on untreated (non adherent) polystyrene suggested that ... was assessed on unmodified SWNT substrates or substrates from SWNTs modified with 4-benzoic acid or 4-tert-butylphenyl ...
Isoprene and Other Resin Chemicals | Janex
Descriptors in 2013 MeSH. Preferred term only. December 14, 2012
Arylamine N-Acetyltransferase Aryldialkylphosphatase Arylformamidase Arylsulfatases Arylsulfonates Arylsulfonic Acids ... Dental Acid Phosphatase Acid Rain Acid Sensing Ion Channel Blockers Acid Sensing Ion Channels Acid-Base Equilibrium Acid-Base ... Neutral Amino Acids Amino Acids, Acidic Amino Acids, Aromatic Amino Acids, Basic Amino Acids, Branched-Chain Amino Acids, ... Respiratory Acids Acids, Acyclic Acids, Aldehydic Acids, Carbocyclic Acids, Heterocyclic Acids, Noncarboxylic Acidulated ...
TERM
Arylsulfonic Acids Arylsulfotransferase Arytenoid Cartilage Asarum Asbestos Asbestos, Amosite Asbestos, Amphibole Asbestos, ... Amino Acids Amino Acids, Acidic Amino Acids, Aromatic Amino Acids, Basic Amino Acids, Branched-Chain Amino Acids, Cyclic Amino ... Acid Ceramidase Acid Etching, Dental Acid Phosphatase Acid Rain Acid Sensing Ion Channel Blockers Acid Sensing Ion Channels ... Acids Acids, Acyclic Acids, Aldehydic Acids, Carbocyclic Acids, Heterocyclic Acids, Noncarboxylic Acidulated Phosphate Fluoride ...
Syntans - Dermacolor
Mildly acid syntan primarily intended for use as pretanning agents for vegetable tanned leather. It may also be used for mild ... Substitution tannins (phenolic, arylsophonic, di-hydroxy-diphenyl-sulphonic), auxiliary tannins (naphthalene, arylsulfonic ... Replacement syntan, based on condensation product of acid phenolsulfonic, dihidroxydiphenylsulfone, urea and formaldehyde.. ...
c33c
... underestimates chernobyl hidrotic lipoatrophy acis margaritifer maturating ack2 ack1 acin acii orbiniidae nivaquine acid acic ... xanthomatous amazonian membranal simplified acetabular alprazolam acetabulae abyssinone transmaxillary lukes arylsulfonic ... methylbenzylamine hymenolepis countries mauritian sherpa trout bicarbonate grimes toadfish melanoplinae prolymphocyte acids ...